The mathematical golden rule states that, for any fraction, both numerator and denominator may be multiplied by the same number without changing the fraction's value.
Golden Rule
See also
Denominator, Fraction, NumeratorExplore with Wolfram|Alpha
References
Conway, J. H. and Guy, R. K. The Book of Numbers. New York: Springer-Verlag, p. 151, 1996.Referenced on Wolfram|Alpha
Golden RuleCite this as:
Weisstein, Eric W. "Golden Rule." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GoldenRule.html